import { type ComponentRef, type EmbeddedViewRef, type Provider, type TemplateRef, type ViewRef } from '@angular/core';
import { type PolymorpheusComponent } from '@taiga-ui/polymorpheus';
import * as i0 from "@angular/core";
/**
 * Abstract class for host element for dynamically created portals.
 */
export declare abstract class TuiPortals {
    private readonly vcr;
    private readonly injector;
    protected readonly nothing: void;
    addComponentChild<C>(component: PolymorpheusComponent<C>): ComponentRef<C>;
    addTemplateChild<C>(templateRef: TemplateRef<C>, context?: C): EmbeddedViewRef<C>;
    static ɵfac: i0.ɵɵFactoryDeclaration<TuiPortals, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<TuiPortals, never, never, {}, {}, never, never, false, never>;
}
/**
 * Abstract service for displaying portals
 */
export declare abstract class TuiPortalService {
    protected host?: TuiPortals;
    attach(host: TuiPortals): void;
    add<C>(component: PolymorpheusComponent<C>): ComponentRef<C>;
    remove<C>({ hostView }: ComponentRef<C>): void;
    addTemplate<C>(templateRef: TemplateRef<C>, context?: C): EmbeddedViewRef<C>;
    removeTemplate<C>(viewRef: EmbeddedViewRef<C> | ViewRef): void;
    protected get safeHost(): TuiPortals;
    static ɵfac: i0.ɵɵFactoryDeclaration<TuiPortalService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<TuiPortalService>;
}
export declare function tuiAsPortal(portal: typeof TuiPortalService): Provider;
export declare class TuiNoHostException extends Error {
    constructor();
}